Fox 36 Rhythm Air Shaft Assembly Keep Your 36 in the Game When your 36 Rhythm's air spring starts losing sensitivity or showing its age, the right move is a complete air shaft assembly swap rather than trying to nurse worn internals back to life. This kit gives you everything you need to restore the FLOAT NA2 air spring to spec, including the air shaft, neg plate subassembly, and seals. The 1. 275 bore matches the Rhythm-specific air spring design, so you're getting a direct replacement that fits the way the fork was built. For shops or riders who do their own service, this is the cleanest path back to a fork that moves the way it should. Features Complete air shaft assembly kit includes all components needed for a full air spring rebuild, no piecing together individual parts FLOAT NA2 air spring compatibility designed specifically for the 36 Rhythm platform and its 1. 275 bore air sleeve Neg plate subassembly included restores the negative air chamber seal for proper small-bump sensitivity and mid-stroke support OEM-spec replacement returns the fork to factory air spring performance without improvising with cross-compatible parts | Fox Racing Shox | 36 Rhythm Air Shaft Assembly 2019 180Mm No Spacer